1 // SPDX-License-Identifier: GPL-2.0-only 2 // 3 // Copyright(c) 2021-2022 Intel Corporation. All rights reserved. 4 // 5 // Authors: Cezary Rojewski <cezary.rojewski@intel.com> 6 // Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com> 7 // 8 9 #include <linux/module.h> 10 #include <sound/jack.h> 11 #include <sound/pcm.h> 12 #include <sound/pcm_params.h> 13 #include <sound/soc.h> 14 #include <sound/soc-acpi.h> 15 #include "../../../codecs/rt274.h" 16 17 #define AVS_RT274_FREQ_OUT 24000000 18 #define AVS_RT274_BE_FIXUP_RATE 48000 19 #define RT274_CODEC_DAI "rt274-aif1" 20 21 static const struct snd_kcontrol_new card_controls[] = { 22 SOC_DAPM_PIN_SWITCH("Headphone Jack"), 23 SOC_DAPM_PIN_SWITCH("Mic Jack"), 24 }; 25 26 static int 27 avs_rt274_clock_control(struct snd_soc_dapm_widget *w, struct snd_kcontrol *control, int event) 28 { 29 struct snd_soc_dapm_context *dapm = w->dapm; 30 struct snd_soc_card *card = dapm->card; 31 struct snd_soc_dai *codec_dai; 32 int ret; 33 34 codec_dai = snd_soc_card_get_codec_dai(card, RT274_CODEC_DAI); 35 if (!codec_dai) 36 return -EINVAL; 37 38 /* Codec needs clock for Jack detection and button press */ 39 ret = snd_soc_dai_set_sysclk(codec_dai, RT274_SCLK_S_PLL2, AVS_RT274_FREQ_OUT, 40 SND_SOC_CLOCK_IN); 41 if (ret < 0) { 42 dev_err(codec_dai->dev, "set codec sysclk failed: %d\n", ret); 43 return ret; 44 } 45 46 if (SND_SOC_DAPM_EVENT_ON(event)) { 47 int ratio = 100; 48 49 snd_soc_dai_set_bclk_ratio(codec_dai, ratio); 50 51 ret = snd_soc_dai_set_pll(codec_dai, 0, RT274_PLL2_S_BCLK, 52 AVS_RT274_BE_FIXUP_RATE * ratio, AVS_RT274_FREQ_OUT); 53 if (ret) { 54 dev_err(codec_dai->dev, "failed to enable PLL2: %d\n", ret); 55 return ret; 56 } 57 } 58 59 return 0; 60 } 61 62 static const struct snd_soc_dapm_widget card_widgets[] = { 63 SND_SOC_DAPM_HP("Headphone Jack", NULL), 64 SND_SOC_DAPM_MIC("Mic Jack", NULL), 65 SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0, avs_rt274_clock_control, 66 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), 67 }; 68 69 static const struct snd_soc_dapm_route card_base_routes[] = { 70 {"Headphone Jack", NULL, "HPO Pin"}, 71 {"MIC", NULL, "Mic Jack"}, 72 73 {"Headphone Jack", NULL, "Platform Clock"}, 74 {"MIC", NULL, "Platform Clock"}, 75 }; 76 77 static struct snd_soc_jack_pin card_headset_pins[] = { 78 { 79 .pin = "Headphone Jack", 80 .mask = SND_JACK_HEADPHONE, 81 }, 82 { 83 .pin = "Mic Jack", 84 .mask = SND_JACK_MICROPHONE, 85 }, 86 }; 87 88 static int avs_rt274_codec_init(struct snd_soc_pcm_runtime *runtime) 89 { 90 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(runtime, 0); 91 struct snd_soc_component *component = codec_dai->component; 92 struct snd_soc_jack_pin *pins; 93 struct snd_soc_jack *jack; 94 struct snd_soc_card *card = runtime->card; 95 int num_pins, ret; 96 97 jack = snd_soc_card_get_drvdata(card); 98 num_pins = ARRAY_SIZE(card_headset_pins); 99 100 pins = devm_kmemdup(card->dev, card_headset_pins, sizeof(*pins) * num_pins, GFP_KERNEL); 101 if (!pins) 102 return -ENOMEM; 103 104 ret = snd_soc_card_jack_new_pins(card, "Headset", SND_JACK_HEADSET, jack, pins, num_pins); 105 if (ret) 106 return ret; 107 108 snd_soc_component_set_jack(component, jack, NULL); 109 110 /* TDM 4 slots 24 bit, set Rx & Tx bitmask to 4 active slots */ 111 ret = snd_soc_dai_set_tdm_slot(codec_dai, 0xF, 0xF, 4, 24); 112 if (ret < 0) { 113 dev_err(card->dev, "can't set codec pcm format %d\n", ret); 114 return ret; 115 } 116 117 card->dapm.idle_bias_off = true; 118 119 return 0; 120 } 121 122 static void avs_rt274_codec_exit(struct snd_soc_pcm_runtime *rtd) 123 { 124 snd_soc_component_set_jack(asoc_rtd_to_codec(rtd, 0)->component, NULL, NULL); 125 } 126 127 static int avs_rt274_be_fixup(struct snd_soc_pcm_runtime *runtime, struct snd_pcm_hw_params *params) 128 { 129 struct snd_interval *rate, *channels; 130 struct snd_mask *fmt; 131 132 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE); 133 channels = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS); 134 fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT); 135 136 /* The ADSP will convert the FE rate to 48k, stereo */ 137 rate->min = rate->max = AVS_RT274_BE_FIXUP_RATE; 138 channels->min = channels->max = 2; 139 140 /* set SSPN to 24 bit */ 141 snd_mask_none(fmt); 142 snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE); 143 144 return 0; 145 } 146 147 static int avs_create_dai_link(struct device *dev, const char *platform_name, int ssp_port, 148 struct snd_soc_dai_link **dai_link) 149 { 150 struct snd_soc_dai_link_component *platform; 151 struct snd_soc_dai_link *dl; 152 153 dl = devm_kzalloc(dev, sizeof(*dl), GFP_KERNEL); 154 platform = devm_kzalloc(dev, sizeof(*platform), GFP_KERNEL); 155 if (!dl || !platform) 156 return -ENOMEM; 157 158 platform->name = platform_name; 159 160 dl->name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d-Codec", ssp_port); 161 dl->cpus = devm_kzalloc(dev, sizeof(*dl->cpus), GFP_KERNEL); 162 dl->codecs = devm_kzalloc(dev, sizeof(*dl->codecs), GFP_KERNEL); 163 if (!dl->name || !dl->cpus || !dl->codecs) 164 return -ENOMEM; 165 166 dl->cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL, "SSP%d Pin", ssp_port); 167 dl->codecs->name = devm_kasprintf(dev, GFP_KERNEL, "i2c-INT34C2:00"); 168 dl->codecs->dai_name = devm_kasprintf(dev, GFP_KERNEL, RT274_CODEC_DAI); 169 if (!dl->cpus->dai_name || !dl->codecs->name || !dl->codecs->dai_name) 170 return -ENOMEM; 171 172 dl->num_cpus = 1; 173 dl->num_codecs = 1; 174 dl->platforms = platform; 175 dl->num_platforms = 1; 176 dl->id = 0; 177 dl->dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_CBS_CFS; 178 dl->init = avs_rt274_codec_init; 179 dl->exit = avs_rt274_codec_exit; 180 dl->be_hw_params_fixup = avs_rt274_be_fixup; 181 dl->nonatomic = 1; 182 dl->no_pcm = 1; 183 dl->dpcm_capture = 1; 184 dl->dpcm_playback = 1; 185 186 *dai_link = dl; 187 188 return 0; 189 } 190 191 static int avs_create_dapm_routes(struct device *dev, int ssp_port, 192 struct snd_soc_dapm_route **routes, int *num_routes) 193 { 194 struct snd_soc_dapm_route *dr; 195 const int num_base = ARRAY_SIZE(card_base_routes); 196 const int num_dr = num_base + 2; 197 int idx; 198 199 dr = devm_kcalloc(dev, num_dr, sizeof(*dr), GFP_KERNEL); 200 if (!dr) 201 return -ENOMEM; 202 203 memcpy(dr, card_base_routes, num_base * sizeof(*dr)); 204 205 idx = num_base; 206 dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "AIF1 Playback"); 207 dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Tx", ssp_port); 208 if (!dr[idx].sink || !dr[idx].source) 209 return -ENOMEM; 210 211 idx++; 212 dr[idx].sink = devm_kasprintf(dev, GFP_KERNEL, "ssp%d Rx", ssp_port); 213 dr[idx].source = devm_kasprintf(dev, GFP_KERNEL, "AIF1 Capture"); 214 if (!dr[idx].sink || !dr[idx].source) 215 return -ENOMEM; 216 217 *routes = dr; 218 *num_routes = num_dr; 219 220 return 0; 221 } 222 223 static int avs_card_suspend_pre(struct snd_soc_card *card) 224 { 225 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, RT274_CODEC_DAI); 226 227 return snd_soc_component_set_jack(codec_dai->component, NULL, NULL); 228 } 229 230 static int avs_card_resume_post(struct snd_soc_card *card) 231 { 232 struct snd_soc_dai *codec_dai = snd_soc_card_get_codec_dai(card, RT274_CODEC_DAI); 233 struct snd_soc_jack *jack = snd_soc_card_get_drvdata(card); 234 235 return snd_soc_component_set_jack(codec_dai->component, jack, NULL); 236 } 237 238 static int avs_rt274_probe(struct platform_device *pdev) 239 { 240 struct snd_soc_dapm_route *routes; 241 struct snd_soc_dai_link *dai_link; 242 struct snd_soc_acpi_mach *mach; 243 struct snd_soc_card *card; 244 struct snd_soc_jack *jack; 245 struct device *dev = &pdev->dev; 246 const char *pname; 247 int num_routes, ssp_port, ret; 248 249 mach = dev_get_platdata(dev); 250 pname = mach->mach_params.platform; 251 ssp_port = __ffs(mach->mach_params.i2s_link_mask); 252 253 ret = avs_create_dai_link(dev, pname, ssp_port, &dai_link); 254 if (ret) { 255 dev_err(dev, "Failed to create dai link: %d", ret); 256 return ret; 257 } 258 259 ret = avs_create_dapm_routes(dev, ssp_port, &routes, &num_routes); 260 if (ret) { 261 dev_err(dev, "Failed to create dapm routes: %d", ret); 262 return ret; 263 } 264 265 jack = devm_kzalloc(dev, sizeof(*jack), GFP_KERNEL); 266 card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL); 267 if (!jack || !card) 268 return -ENOMEM; 269 270 card->name = "avs_rt274"; 271 card->dev = dev; 272 card->owner = THIS_MODULE; 273 card->suspend_pre = avs_card_suspend_pre; 274 card->resume_post = avs_card_resume_post; 275 card->dai_link = dai_link; 276 card->num_links = 1; 277 card->controls = card_controls; 278 card->num_controls = ARRAY_SIZE(card_controls); 279 card->dapm_widgets = card_widgets; 280 card->num_dapm_widgets = ARRAY_SIZE(card_widgets); 281 card->dapm_routes = routes; 282 card->num_dapm_routes = num_routes; 283 card->fully_routed = true; 284 snd_soc_card_set_drvdata(card, jack); 285 286 ret = snd_soc_fixup_dai_links_platform_name(card, pname); 287 if (ret) 288 return ret; 289 290 return devm_snd_soc_register_card(dev, card); 291 } 292 293 static struct platform_driver avs_rt274_driver = { 294 .probe = avs_rt274_probe, 295 .driver = { 296 .name = "avs_rt274", 297 .pm = &snd_soc_pm_ops, 298 }, 299 }; 300 301 module_platform_driver(avs_rt274_driver); 302 303 MODULE_LICENSE("GPL"); 304 MODULE_ALIAS("platform:avs_rt274"); 305